1.实时的文本消息.支持表情图释.发送图片. 2.文件传送功能.支持大文件,多文件,目录的传输. 3.稳定的视频语音传输.-1. Real-time text messages. Supports emoticons. Send pictures. 2. File transfer capabilities. To support large files, multiple files, directories transmission. 3. And stable video and